Toro Groundmaster 31900, Service Manual

Page: 106 / 355

Auxiliary Valve Circuit (Optional)
g298934
Figure 27
Auxiliary Valve Circuit Diagram
An auxiliary valve kit is available to support the hydraulic needs of various
attachments. The kit includes a 3 position cartridge style solenoid valve (SV)
in a separate manifold. The valve has 2 coils (S1 and S2). The auxiliary valve
manifold is located near the front of the machine under the operator floor plate.
Gear pump (P2) supplies oil flow for the steering circuit, optional auxiliary valve
circuit, lift circuit, and also provides a constant supply of charge oil to the closed
loop traction circuit. The pump output flows to the steering control valve before
supplying the lift, auxiliary valve, and charge circuit needs so that the steering
circuit has priority.
Hydraulic System: Hydraulic Flow Diagrams Page 5–20 Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A